| 摘要 |
<p>A supporting slab (1) comprising a concrete matrix structure having at least a planar surface forming the upper surface (2) of the slab and a lower surface (3) located opposite the upper surface (2). The planar surface is surrounded by a kerb (4, 16) extending from the lower surface (3) of the slab to a direction opposite the upper surface (2) and the lower surface (3) of the slab comprises cross-wise webs (7). The webs (7) extend in the lower surface (3) over the area defined by the kerb (4, 14) inside it and protruding outwards from the lower surface. The kerb (4, 16) and the webs (7) each comprise reinforcing steels. The indentations between the kerb (4, 16) and the webs (7, 17) are at least partly filled with filler material lighter than concrete.</p> |
